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Waitingforatrain · 05-24-2017, 03:28 PM

Here is an article that might be useful to this discussion:

http://batteryuniversity.com/learn/a...ased_batteries

Battery degradation is a real issue -- especially for those in our smartphones. My last phone had issues after just a year. I was one to typically put it on the charger at night while sleeping. Extended time sitting at 100% capacity is NOT good for long term battery life. Battery cycles get used up quickly that way. Current phone is rarely charged higher than 80% and I try to charge it when it is at 20-30% left. I get 4+ hours of screen on time (which is plenty for me). Now our kindles, I would think, are gentler on the battery (reading isn't so battery intensive) and you aren't charging it every day or even every week so it would take quite a bit longer to use up the 300 to 500 lifetime cycles. Most of a full battery cycle is used when the battery is <20% or charging to > 80%. Because of my experience with my last phone I would be less inclined to keeping my Oasis in its' cover for an extended period of time when possible. I have a Voyage and it seems like weeks go by before I have to charge it and even then I just charge it for an hour or so most of the time and seldom wait for the light to go green (unless traveling).

Now we also have a hybrid car so it'll be interesting to see how long that battery lasts (if we keep it long enough that is). I believe that I saw something on that web site about how car manufacturer's have the car systems set to not let the battery charge beyond a certain point to prolong battery life. That would make sense for such an expensive battery. I've never seen the battery meter go past ~80% before the gas engine kicks in.

My Lenovo laptop has a conservation mode setting to limit charging the battery past 60% when connected to AC for the same reason. This has worked out well for me. I can charge to 100% when I really need the extra juice.

05-24-2017, 03:28 PM	#49
Waitingforatrain Groupie Posts: 153 Karma: 902096 Join Date: Jul 2013 Device: Kindle Oasis 3, Kindle Voyage	Here is an article that might be useful to this discussion: http://batteryuniversity.com/learn/a...ased_batteries Battery degradation is a real issue -- especially for those in our smartphones. My last phone had issues after just a year. I was one to typically put it on the charger at night while sleeping. Extended time sitting at 100% capacity is NOT good for long term battery life. Battery cycles get used up quickly that way. Current phone is rarely charged higher than 80% and I try to charge it when it is at 20-30% left. I get 4+ hours of screen on time (which is plenty for me). Now our kindles, I would think, are gentler on the battery (reading isn't so battery intensive) and you aren't charging it every day or even every week so it would take quite a bit longer to use up the 300 to 500 lifetime cycles. Most of a full battery cycle is used when the battery is <20% or charging to > 80%. Because of my experience with my last phone I would be less inclined to keeping my Oasis in its' cover for an extended period of time when possible. I have a Voyage and it seems like weeks go by before I have to charge it and even then I just charge it for an hour or so most of the time and seldom wait for the light to go green (unless traveling). Now we also have a hybrid car so it'll be interesting to see how long that battery lasts (if we keep it long enough that is). I believe that I saw something on that web site about how car manufacturer's have the car systems set to not let the battery charge beyond a certain point to prolong battery life. That would make sense for such an expensive battery. I've never seen the battery meter go past ~80% before the gas engine kicks in. My Lenovo laptop has a conservation mode setting to limit charging the battery past 60% when connected to AC for the same reason. This has worked out well for me. I can charge to 100% when I really need the extra juice. Last edited by Waitingforatrain; 05-24-2017 at 03:41 PM.